id author title date pages extension mime words sentences flesch summary cache txt cord-310753-sv88b0dt Marks, M. Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study 2020-10-27 .txt text/plain 3585 210 56 By the time of performing this search, various 57 authors had reported on retrospective analyses of clusters of index cases and their corresponding contacts, 58 as well as series of patients who developed symptomatic Covid-19 disease after PCR positive result. The objective of this study was to evaluate transmission dynamics of SARS-CoV-2 in the context of a trial 109 of post-exposure prophylaxis and evaluate the influence of baseline variables-including viral load of the 110 index cases and exposed contacts-to transmission, development of symptomatic disease, and the 111 incubation period. Also, after excluding 215 contacts who were PCR positive at the first study visit, we found no association between the viral load of 216 the index case and the time to onset of incident SARS-CoV-2 infection (HR 1.01 95% CI 0.83-1.23). ./cache/cord-310753-sv88b0dt.txt ./txt/cord-310753-sv88b0dt.txt